videoplayer.h Example File

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#ifndef VIDEOPLAYER_H
#define VIDEOPLAYER_H

#include <QMediaPlayer>
#include <QWidget>

class QAbstractButton;
class QSlider;
class QLabel;
class QUrl;

class VideoPlayer : public QWidget
{
    Q_OBJECT
public:
    VideoPlayer(QWidget *parent = nullptr);
    ~VideoPlayer();

    void setUrl(const QUrl &url);

public slots:
    void openFile();
    void play();

private slots:
    void mediaStateChanged(QMediaPlayer::State state);
    void positionChanged(qint64 position);
    void durationChanged(qint64 duration);
    void setPosition(int position);
    void handleError();

private:
    QMediaPlayer* m_mediaPlayer;
    QAbstractButton *m_playButton;
    QSlider *m_positionSlider;
    QLabel *m_errorLabel;
};

#endif